GrowthNation — Proof skills for AI agents
Five self-contained social-proof skills for B2B sales, in one plugin:
/proof-audit — grade how fresh a company's testimonials, case studies, and reviews are, and get a concrete refresh list./proof-meeting-prep — walk into a call knowing every person in the room, with the one proof angle that lands for each of them./proof-email — write a cold or warm sales email to a specific person, grounded in real proof and one influence principle./proof-dm — write a short LinkedIn DM (≤80 words) that earns a reply./proof-post — write a public LinkedIn post that pulls inbound, tuned to an audience.
What's in here
| Command | What it does |
|---|
/proof-audit | Point it at a domain — it finds the social proof on the site (testimonials, case studies, reviews, logo walls, customer stats), scores how fresh each piece is on a five-band scale (🟢 Fresh → ⚫ Expired), and prints a worst-first audit with prioritised refresh recommendations. Stale proof reads as neglect and quietly kills deals; this tells you what to fix. |
/proof-meeting-prep | Give it the company, the people on the call, and what you're selling. It researches each person from public sources, works out what that role cares about and what they'll push back on, proposes the single proof angle most likely to move them, then reads the room (champion, buyer, gatekeeper, sequencing). |
/proof-email | Give it the recipient (name + role + company) and what you're selling — it pulls the right proof and writes a ready-to-send subject + body, tailored to the recipient's role and built on one influence principle, with the reason it works. |
/proof-dm | Same, for a LinkedIn DM — body only, ≤80 words, one sharp proof point, one frictionless ask. Ready to paste. |
/proof-post | Give it a topic + audience — it writes a public LinkedIn post (hook + short paras + soft CTA, ≤1200 chars) grounded in a real customer win and the angle that resonates with that audience. |
Standalone by default: every skill runs on the agent's built-in web search + fetch — no API keys, no database, no CRM, no login, so anyone can install and run them. If the GrowthNation MCP connector is also installed and you're signed in, the writing skills pull your real customer proof for context (via the free prepare_* tools) and then write the copy, falling back to web otherwise (see Optional: the GrowthNation connector).
Install
Claude Code Terminal
/plugin marketplace add growthnation/GrowthNationPlugin
/plugin install growthnation@growthnation
/reload-plugins
Then use /proof-audit, /proof-meeting-prep, /proof-email, /proof-dm, and /proof-post.
Optional — enable auto-update: /plugin, then choose Marketplaces tab > growthnation > Enable auto-update
Claude Cowork / Code Desktop
Customize > Personal Plugins > + > Create Plugin > Add marketplace, input growthnation/GrowthNationPlugin, click SyncPlugins > Personal > growthnation, click + on growthnation- (Claude Cowork only) Enable web access:
Profile (bottom left) > Settings > Capabilities > Code execution and file creation > turn on Allow network egress, then set Domain allowlist to All domains (the skills fetch arbitrary company and LinkedIn pages).
Claude Chat Desktop
Install from the repo URL — all five skills come with it. Use Add marketplace, not "Upload plugin" (a ZIP upload fails validation; the marketplace import is the supported path).
Customize > Plugins > Personal > click the + > Add marketplace.- In URL, paste
growthnation/GrowthNationPlugin (or the full https://github.com/growthnation/GrowthNationPlugin) and click Sync. All five skills install together — you'll see "Growthnation is installed and ready to use."
- Enable web access:
Profile (bottom left) > Settings > Capabilities > Code execution and file creation > turn on Allow network egress, then set Domain allowlist to All domains.
Other Agents (Codex / Cursor / etc.)
Copy the skill folder(s) into your agent's skills directory:
cp -r plugins/growthnation/skills/proof-audit ~/.claude/skills/ # or your agent's equivalent
cp -r plugins/growthnation/skills/proof-meeting-prep ~/.claude/skills/
cp -r plugins/growthnation/skills/proof-email ~/.claude/skills/
cp -r plugins/growthnation/skills/proof-dm ~/.claude/skills/
cp -r plugins/growthnation/skills/proof-post ~/.claude/skills/
Or follow your agent's skill installation instructions to install manually.
Optional: the GrowthNation connector
